Related:

• Beware of a man that does not talk and a dog that does not bark. Portuguese Proverb
• It was a small town: Ferguson, Ohio. When you entered there was a big sign and it said, "Welcome to Ferguson.
  Beware of the Dog." The all-night drugstore closed at noon. -- Jackie Verno...
• Beware of Bigfoot!
• Beware the psychopomp
• Above all, beware of Zeal!
• Beware low flying ducks!
• Beware of an envelope that ticks.
• Beware of an executive with a clean desk.